Sedimentology of the northwestern Weddell Sea continental shelf and slope

Sediment cores on two profiles oriented normaly to the continental shelf and slope, have been investigated to reconstruct the Quaternary sedimentary history of the southeast continental border of South Orkney (NW Weddell Sea). The sediments were described macroscopically and their fabric investigated by use of X-radiographs. Laboratory work comprised detailed grain-size analysis, determination of the watercontent, carbonate, organic carbon and sand fraction.composition. Stable oxygen and carbon isotopes have been measured On planktonic foraminifera. Palaeomagnetism, analysis of 230Th-content and detailed comparison of the lithlogic Parameters with the oxygen isotope stages (Martinson curve) were used for stratigraphic classification of the sediments. […]

对两个面向大陆架和斜坡的沉积岩心进行了研究，以重建南奥克尼群岛（西北威德尔海）东南大陆边缘的第四纪沉积历史。通过对沉积物进行宏观描述，并利用X射线照相术对其结构进行探究。实验室工作包括对颗粒大小进行详细分析，测定水分含量、碳酸盐、有机碳和沙粒组分。在浮游有孔虫上测量了稳定氧和碳同位素。采用古地磁学、230Th含量分析以及与氧同位素阶段（马丁森曲线）的详细比较，对沉积物进行了地层分类。